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| Number | Title | Issue Date |
| 7547078 | Adaptable traction system of a vehicle A traction system for a vehicle has a support frame that defines a circular track belt support that is revolvable about an axis at its center, a flexible track belt; and a track belt stretching assembly comprising one or more track belt stretching rollers. The syste... | 06/16/2009 |
| 7347511 | Rotary walker robotic platform A rotary walking device having multiple sequential ground engaging elongated struts interconnected between pairs of annular drive disks. Each pair of drive disks having multiple pivot attachment points for the respective opposing apertured ends of each strut. Each s... | 03/25/2008 |
| 7338080 | Truck frame for construction machine A vehicular body oscillating mechanism (31) is provided between a frame (3) of an automotive vehicular body (2) and a stabilizer (18) thereby to sway the vehicular body (2) arcuately in a rightward and/or leftward direction about a... | 03/04/2008 |
| 7338081 | Truck frame for a construction machine A left fore leg (31) is formed to shape by a casting means, integrating an inner joint portion (31A), an outer joint portion (31B) and an intermediate tubular portion (31C) into an unitary tubular structure. In this case, a joining end ( | 03/04/2008 |
| 7334850 | Adaptable traction system of a vehicle A traction system for a vehicle has a support frame that defines a circular track belt support that is revolvable about an axis at its center, a flexible track belt; and a track belt stretching assembly comprising one or more track belt stretching rollers. The syste... | 02/26/2008 |
| 7108333 | System for mounting tracks on a wheel of a vehicle A wheel mounting apparatus is disclosed for mounting a wheel carrying a track onto a vehicle. The wheel mounting apparatus comprises a mounting structure for mounting onto an axle of the vehicle. The mounting structure is removably mountable to the axle of the vehic... | 09/19/2006 |
| 7036894 | Tandem drive for tracked vehicles A tandem track system and method provides for safe withdrawal of a tracked vehicle if either of the main tracks becomes separated. The tracked vehicle has a main track longitudinally extending in a closed endless main loop on opposite sides and engaging a separate m... | 05/02/2006 |
| 6922866 | Paint roller A paint roller (10) has a paint applicator (12), two holder mounts an applicator holder (14). The paint applicator (12) has a cylindrical outer surface and two opposite ends (18a,18b). The two holder mounts, re... | 08/02/2005 |
| 6725895 | Wheel A wheel has a rigid rim, a soft tire arranged on the rigid rim, and a unit for generating different pressures from inside in the soft tire in contact zone of tire with road surface, at opposite sides of a vertical transverse plane of symmetry of the rim so as to cau... | 04/27/2004 |
| 6604589 | Drive for a vehicle intended to transverse rough terrain A drive for a vehicle traversing rough terrain including first and second drive units and first and second pairs of tires. The first drive unit includes a first differential and axle. The second drive unit includes a second differential and axle. A second... | 08/12/2003 |
| 6530626 | Field-repair device for a rubber-band track The device (10) is used for temporarily repairing a ruptured or otherwise damaged rubber-band track (50) of a vehicle and allow the vehicle to proceed on its own to the nearest maintenance site or to a convenient location where replacement or permanent re... | 03/11/2003 |
| 6336515 | Unsprung vacuum-operated traction enhancement system for land vehicles A vacuum intake horn is constantly secured to a portion of a land vehicle and connected to a vacuum generator to increase the load on the wheels and, thereby, enhance traction. In order to minimize the clearance between the intake horn face and road surfa... | 01/08/2002 |
| 6154988 | Machine for digging under pipes and caterpillar traction device The present invention is for a machine for digging under pipes, wherein the machine comprises a frame having a caterpillar drive traction device mounted thereon, as well as left and right end effectors. The end effectors are each made in the shape of a mo... | 12/05/2000 |
| 5492390 | Variable shaped wheel A variable shaped wheel having a hub, a plurality of extendable ram rods connecting the hub and shape adaptable rim. Extension and retraction of the ram rods cause the rim to harmonize to a selected wheel shape such as horizontal oval, vertical oval, elli... | 02/20/1996 |
| 5408935 | Transportation system using magnetic belt propulsion A magnet-type transportation system of a car-side primary type includes a rail of a magnetic material, fixedly laid down along a traveling track, and a power car capable of self-movement by a plurality of wheels adapted to roll over the traveling track. T... | 04/25/1995 |
| 5366038 | Robot traveling on wall face A robot traveling on wall face is capable of advancing or retreating on the wall face in a stable manner with a quick change-over of its traveling direction with the help of a plurality of movable adsorption discs designed for a close contact with the wal... | 11/22/1994 |
| 5312176 | Self-aligning idler wheel assembly A self-aligning idler wheel assembly for a belted work vehicle includes a spindle having first and second radially extending flange portions. First and second self-aligning mechanisms are associated with a respective flange portion. The vehicle has an und... | 05/17/1994 |
| 5312164 | Vehicle propelling member and assembly A vehicle propelling assembly to propel a vehicle in a given direction comprises a pair of propelling members (19a, 19b) each having a body portion (20a, 20b) which rotates about a rotation axis extending substantially at right angles to the direction of ... | 05/17/1994 |
| 5308098 | Self-propelled all terrain wheelchair A wheelchair adapted for use both on smooth surfaces and uneven or rough ground wherein a cleated belt is trained around a plurality of wheels on both sides of the chair and is driven by a spring-loaded handgrip engaging therewith. Means are provided for ... | 05/03/1994 |
| 5303992 | Extendable and retractable ground-engaging projections for tracked vehicle An armored tracked vehicle is provided with traction-increasing grousers and a remotely controllable system for extending and retracting the grousers. In a preferred embodiment of the invention, the grousers are extended by a hydraulic system formed of a ... | 04/19/1994 |
| 5265449 | Snowmobile track lock An anti-theft device for use in conjunction with a tracked snowmobile is disclosed. The device has an elongated main arm member and an auxiliary arm member welded to the main arm member, with the arm members being made of case hardened steel and then bein... | 11/30/1993 |
| 5215360 | Traceable tracked vehicle licensing system A tracked vehicle identification includes an identification code formed in the tread of a tracked vehicle so as to leave an imprint on the ground. A second embodiment of the invention includes a plate affixed to the vehicle track with apertures therein to... | 06/01/1993 |
| 5189819 | Trenching apparatus A trenching apparatus is provided having a base support which mounts a boom structure carrying a digger arm operative to form a trench alongside the base support along a trenching line. The base support includes a pair of longitudinally spaced sleeve memb... | 03/02/1993 |
| 5127714 | Belt alignment mechanism for a belt driven vehicle The invention described herein is a belt alignment mechanism for causing the belt of a belt driven vehicle to run true. In such vehicles, the belt runs around wheels and often such belts have a tendency to run to one side of the wheels or in other words n... | 07/07/1992 |
| 4828339 | Crawler chain An endless crawler chain capable of driving machinery across a surface. The endless crawler chain includes a plurality of first links interconnected with a plurality of second links to form the endless chain. Each of the second links has a pair of opening... | 05/09/1989 |
| 4815794 | Track chain roller with degradable spacer rings The rotatably mountable track chain roller has two molded axle journal stubs which each engage rotatably in an end cap formed as a radial and axial bearing. Further expecially the track chain roller is provided with lubricant material for its bearings whi... | 03/28/1989 |
| 4763961 | Debris removal apparatus for track type vehicles A track type vehicle is provided with debris removal apparatus to prevent packing in a cavity defined by the track, the vehicle body, the drive sprocket, the idler and the frame member which mounts the drive sprocket and the idler. The debris removal appa... | 08/16/1988 |
| 4664212 | Vacuum wall crawler A vacuum wall crawler is provided with a pair of endless belts at both sides of the frame, the pair of endless belts having at their outer surfaces a plurality of recesses each of which has a through hole. Air in the recesses is sucked through suction cha... | 05/12/1987 |
| 4655514 | Sound reduction for tracked vehicles An add-on mechanism for high pitched sounds emitted by the tracks of miliy vehicles. Centerguide structures on the tracks are equipped with special U-shaped vibration dampers. Squeaks (high pitched sounds) associated with rubbing contact between the cent... | 04/07/1987 |
| 4411329 | Vehicle with multi-directional movement capabilities Mobile vehicles, such as lift trucks, are normally mounted on pairs of front and rear wheels for locomotion purposes. The rear wheels are steerable to move the truck into various work positions. However, the turning radius and maneuverability of vehicles ... | 10/25/1983 |
| 4407551 | Replaceable wear cover for track bushing A replaceable wear cover for track chain bushings which covers and protectively shields the track bushing such that the wear cover, rather than the bushing, directly engages the metallic outer radial portions of the chain-driving sprocket wheel. The wear ... | 10/04/1983 |
| 4324414 | Wheelchair A wheelchair and rolling suspension system are supported by a pair of inclined, nested circular hoops. The hoops may be manually driven by lever arms accessable to the chair occupant. Moreover, the drive system permits the chair to negotiate straight line... | 04/13/1982 |
| 4258463 | Track mounting tool and method A tool (12) for mounting a track assembly (11) on a track-type vehicle comprises first (18) and second (39) attachments for being interconnected between a drive sprocket (10) and the track assembly (11). A flexible connector (35) has its ends attached to ... | 03/31/1981 |
| 4258815 | Ambulator drive mechanism A drive mechanism is provided particularly suitable for use in ambulators ving a mobile platform that transports a paraplegic in a standing position, the unique drive mechanism enabling the platform to be of a minimum size with a very low center of gravit... | 03/31/1981 |
| 4235479 | Crawler vehicle with dirt removing plate A crawler type vehicle has a frame and front idler and rear sprockets over which a crawler track extends in an upper flight and a lower flight with a pair of pusher plates being mounted on hydraulic cylinders beneath and closely adjacent said track upper ... | 11/25/1980 |
| 4196493 | Caster having roller belts A caster consisting of a caster body having lateral body portions on which flexible roller belts of closed loop shape are slidably supported. The lateral body portions are configured so that the portions of the belts in engagement with the under sides of ... | 04/08/1980 |
| 4141423 | Vehicle suspension apparatus A vehicle suspension apparatus includes a shaft on which track frames are pivotally mounted, the shaft at the ends thereof having fitted on each end thereof a cap, the track frame on that end having secured thereto a retaining member with a plate in seali... | 02/27/1979 |
| 4129193 | Propulsion system for a snow going device A propulsion system for a snow going device having a tread circulateably supported around an elongated body with skirt means on each side and extending below the elongated body for protecting the tread and improving the traction.... | 12/12/1978 |
| 4093033 | Snowmobile suspension system A suspension system for a track driven vehicle such as a snowmobile, comprising a generally rectangular rigid suspension frame having longitudinal rails slidably supported on the inner surface of the track, and front and rear suspension assemblies for res... | 06/06/1978 |
| 4088377 | Recoil spring lock device In a track tensioning apparatus for a tracked vehicle, recoil lock device is provided to prevent unintentional release of a prestressed helical spring during disassembly of the apparatus. Partial compression of the spring is necessary for assembly or disa... | 05/09/1978 |
